One one-hundredths to william rapp



t nu .e. h .S w. e e h S 2 L L A M .s Y Am GND Modql.)

'ANTIPRIGTION BEARING.

Patent-ed Jan. A26, 1897i El.'

NTD I j M555@ R 7* ?"Mff (No Model.)

2 Sheets-Sheet 2.' A. Y. SMALL. 5

ANTIFRIGTION BEARING.

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Patented Jan. 26, 1897.

' 'INvENTnR UNITED t STATES PATENT OFFICE.

ANDREW SMALL, OERROOKTON, MASSACHUSETTS'. ASSIGNOR OE EIETY- ONE ONE-HUNDREDTIIS To WILLIAM RAPP, OE SAME PLACE, EBEN E. PAGE, OE BOSTON, AND ALBERT HERBERT, OE NEWTON, MASSACHU- SETTS.

ANTIFRlCTloN-BEARING.

SPECIFICATION forming part of Letters PatentA N' o. 575,858, dated January 26, 1 897.

Application filed April 29, 1896. Serial No. 589,559. (No model.)

To au wwnt it may concern.,-

' Be. it known that I, ANDREW Y. SMALL, of

Brockton,in the countyof Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Antifriction- Bearings, of which the following is a specifi# cation.

This invention relates to means for lubricating and otherwise reducing the friction of Io shafts in their bearings, and, as here shown,

is designed with special reference to the su pport and. lubrication of shafts from bclowor the under side, the bearing Supporting theweightof theshaft and its adjunct-s, although I 5.' the bearing Inay rest on the shaft or journal,

as in the case of car-axles, which latter su pport the bearing.

The object of this invention is the production of asimple and thoroughly practical antizo friction-bearing in which one or more of they rotary parts comprising the shaft or journal and the antiflriction-rollers possesses the further function of supplying oil to the contacting portionsof the shaft and roller, so that in addition to the antifrictional support afforded vbythe roller-bearings there is a constant lubrication which still further reduces the friction and Wear.

To this end the invention consists in the con- 3o struction and combinationy of parts substantially as hereinafter described and claimed.

In the accompanying drawings, which form a part of this specification, Figure l represents a side elevation, and Fig. 2 a longitudi-f 3 5 nal section, of a shaft-hanger embodying the improvements, the yoke-bracket for support- -ing said hanger being omitted. Fig. 3 represents a section on line 3 3 of Fig. y1,said figure also showing the yoke-bracket in eleva- 4o tion. Fig. 4 represents a section on line 4 4 of Fig. 1. Fig. 5 represents an end elevation `from either end of Fig. 1. Fig. 6 represents a longitudinal section showing a somewhat different construction particularly adapted to support the shaft of a dynamo or electric -motor. Fig. 7-representsasection on line 7 7 of Fig. 6. Fig. 8 represents a section on line S 8 of Fig'. 7. Fig. 9 represents an end elevation of the form shown in Figs. 6, 7, and 8. 5o Fig. 10 represents a section similar to Fig. 4,

vided with an ear or lugh.

shlowing a somewhat different arrangement of ro ls. 1

The same letters of reference indicate the same parts in all the figures.

Referring first to Figs. 'l to 5, inclusive, a 5 5 indicates the oil-reservoir, of substantially semicylindrical shape in cross-section, and b indicates the cap or `cover therefor, the two being provided with suitable earsadapted to be secured together by screws or bolts c.

Within the oil-reservoir are bearings f for the antifriction-rollers g, Said kbearings being formed in a plurality of cross-bars e, (preferably tlhree,) said cross-bars having orifices f nett the .bottom of the` oil-reservoir, in order that the oil may pass them freely. Each side, ofthe reservoir, midway of its length, is pro- .The said ears or lugs h are each provided with a cone-shaped recess k to form bearings for the, pointed 7o trunnions Z, adjustably carriedA by the ends of the fork or yoke bracket fm, by means of .which the shaft-bearing is suspended.

\ The ends of the-reservoir and cover are suitably recessed to ad mit the shaft n, which rests on the three antifrietion-rollers and is closely fitted above by the cover b. Said shaft is provided with collars o o to prevent oil from working outwardly along the shaft,

andthe cover bis provided with yhoods or 8o raised portions p to receive the upper parts of said collars.

-The cover b is also provided with lugs q, extending down within the sides ofthe reservoir, the lower ends of said lugs being concave to bear on and fit the trunnions of the two side rollers. 'In the drawings three such lugs are shown, the central one on each side bearing on a reduced portion of the roller.

The Iniddle or lower one of the three anti- 9o friction rollers g is preferably larger than the others, and this roller.(as well as the others, if the amount of oil in the reservoir is suiiieient) takes up oil and applies it to the shaft, thus still further reducing the friction and wear.

Figs. 6, 7, 8, and 9 ,illustratea construction adapted particularly to support the shaft of a dynamo. In this form, instead of the ears h, trunnions Z, and yoke-bracket m, the bearloo ing is supported with some freedom of movement ina fixed standard o', .which is in the form of a fork or yoke and is provided with a flat surface s, on which the shaft-bearing may rock longitudinally.

rihe oilreservoir is formed with a rocker t on its lower portion to rest on said base s, and the latterl is depressed, so as to leave a shoulderu at each end, whereby the rocker t is retained ,in position endwise.

The standard?- has an arm o extending up on4 cach side of the oil-reservoir, and the two arms @are connected by an arch or bridge w, the inner surface of which is curved, as shown at x in Fig. S, said curved surface being in contact with the top of the cover I), the bridge serving to hold the cover on the oilreservoir, but permitting said reservoir and cover to oscillate slightly in a longitudinal direction or to be adjusted in such direction on the base s. ln this form .the screws or bolts c are omitted, the bolts y, which secure the bridge w. to t-he arms yU of the standard,

serving, through the medium of the bridge, to hold the cover in place.

lhis invention is not restricted to the precise details of construction shown, and certain modifications may be made within the scope of the claims. For instance, the crossbars or ribs e, having the bearings for the rollers, may be separate from the casing a instead of integral therewith.

ln Fig. lO l show a construction which is like that shown in Fig. a, excepting that the side rollers g are elevated to give a better support to the shaft against an approximately horizontal draft or strain.

lt will be seen that the trunnions l and sockets It' (shown in Fig. 3) and the rocker t and flat base s (shown in Fig. constitute complenlental bearings which permit a longitudinal oscillation of the reservoir for the purpose of maintaining the rolls in exact parallelism with the shaft.

'lhe collars o o are preferably m ade of sheetmetal sections clamped upon the shaft. Pack.- ings o', of felt or other suitable material, may be interposed between the collars and shaft to prevent oil from creepingoutwardlythrough the crevices between the collars and shaft.

l do not limit myself to the relative arrangement of the oil-reservoir, rollers, and shaft here shown, whereby one or more of the rollers is caused to take up oil and supply it to the shaft, as my invention may be applied to a car-,axle box, the rollers being located above the shaft or journal portion of the axle and out of contact with the accumulation of oil, in which case the lower portion of the axle itself may project into the oil, the result being the same as that of the arrangementshown in the drawings. I

l clainil. ln a bearing of the`character specified, the combination of an oil-reservoir having bearings for a plurality of Irollers, antifriction-rollers journaled in said bearings and arranged to support the shaft and to transfer oil thereto from the reservoir, a fixed support for said reservoir, and complemental bearings on said reservoir and support whereby the reservoir is permitted to oscillate longitudinally to maintain its rolls in parallelism with .the shaft.

2. The combination with the oil-reservoir having the central ears, of the cross-bars or ribs, a plurality of autifriction-rollcrs mounted in said bars,and the yoke-bracket or hanger having trunnion engagement with said ears.

3. The combination with the oil-reservoir having central ears, of the cross-bars or ribsv forming bearings, antifriction-rollers mounted in said bearings, the cover having lugs extending down inside of the reservoir, said lugs to bear on the trunnions of the rollers, and

the bracket or hanger having trunnion connections with said'ears.

4. The combination with the oil-reservoir, of a plurality of antifriction-rollers mounted therein, and the cap or cover secured to said reservoir andfhaving lugs extending down inside thereof and fitted to the trunnions or axles of the rollers.

5. The combination with the oil-reservoir a having ears 7L, of the cross-bars or ribs having three sets of bearings f, the cover l) bolted to the reservoir, the rollers g in the bearings f, and the yoke-bracket m having trunnions Z fitted to said ears 71 substantially as and for the purpose set forth.

ln testimony whereof l have signed my nanieto this specification, in the presence of two subscribing witnesses, this 22d day of April, A. D. 1896.

ANDRENV Y. SMALL. Witnesses:

C. F. BROWN,

A. D. HARRISON.

IOO 

